<template>
  <div class="login">
    <div class="layer" />
    <el-form ref="loginForm" :model="loginForm" :rules="loginRules" class="login-form">
      <h3 class="title">PmHub</h3>
      <el-form-item prop="username">
        <el-input v-model="loginForm.username" type="text" auto-complete="off" placeholder="账号">
          <svg-icon slot="prefix" icon-class="user" class="el-input__icon input-icon" />
        </el-input>
      </el-form-item>
      <el-form-item prop="password">
        <el-input
          v-model="loginForm.password"
          type="password"
          auto-complete="off"
          placeholder="密码"
          @keyup.enter.native="handleLogin"
        >
          <svg-icon slot="prefix" icon-class="password" class="el-input__icon input-icon" />
        </el-input>
      </el-form-item>
      <el-form-item prop="code" v-if="captchaEnabled">
        <el-input
          v-model="loginForm.code"
          auto-complete="off"
          placeholder="验证码"
          style="width: 63%"
          @keyup.enter.native="handleLogin"
        >
          <svg-icon slot="prefix" icon-class="validCode" class="el-input__icon input-icon" />
        </el-input>
        <div class="login-code">
          <img :src="codeUrl" @click="getCode" class="login-code-img" />
        </div>
      </el-form-item>
      <el-checkbox v-model="loginForm.rememberMe" style="margin: 0px 0px 25px 0px">记住密码</el-checkbox>
      <el-form-item style="width: 100%">
        <el-button
          :loading="loading"
          size="medium"
          type="primary"
          style="width: 100%"
          @click.native.prevent="handleLogin"
        >
          <span v-if="!loading">登 录</span>
          <span v-else>登 录 中...</span>
        </el-button>
        <div style="float: right" v-if="register">
          <router-link class="link-type" :to="'/register'">立即注册</router-link>
        </div>
      </el-form-item>
    </el-form>
    <!--  底部  -->
    <div class="el-login-footer">
      <span>Copyright © 2022-至今 </span>
      <a href="https://github.com/laigeoffer" target="_blank">来个offer官方，</a>
      <a href="https://github.com/laigeoffer/pmhub" target="_blank">项目源码</a>
    </div>
  </div>
</template>

<script>
// import { getCodeImg } from "@/api/login"
import Cookies from "js-cookie"
import { encrypt, decrypt } from "@/utils/jsencrypt"

export default {
  name: "Login",
  data() {
    return {
      codeUrl: "",
      loginForm: {
        username: "",
        password: "",
        rememberMe: false,
        code: "",
        uuid: "",
      },
      loginRules: {
        username: [
          { required: true, trigger: "blur", message: "请输入账号" },
          { max: 30, trigger: "blur", message: "长度在 30 个字符以内" },
          // { pattern: "", trigger: "blur", message: "只能输入英文" }
        ],
        password: [
          { required: true, trigger: "blur", message: "请输入密码" },
          { max: 30, trigger: "blur", message: "长度在 30 个字符以内" },
        ],
        code: [{ required: true, trigger: "change", message: "请输入验证码" }],
      },
      loading: false,
      // 验证码开关
      captchaEnabled: false,
      // 注册开关
      register: false,
      redirect: undefined,
    }
  },
  watch: {
    $route: {
      handler: function (route) {
        this.redirect = route.query && route.query.redirect
      },
      immediate: true,
    },
  },
  created() {
    this.getCode()
    this.getCookie()
  },
  methods: {
    getCode() {
      // getCodeImg().then((res) => {
      //   this.captchaEnabled = res.captchaEnabled === undefined ? true : res.captchaEnabled
      //   if (this.captchaEnabled) {
      //     this.codeUrl = "data:image/gif;base64," + res.img
      //     this.loginForm.uuid = res.uuid
      //   }
      // })
    },
    getCookie() {
      const username = Cookies.get("username")
      const password = Cookies.get("password")
      const rememberMe = Cookies.get("rememberMe")
      this.loginForm = {
        username: username === undefined ? this.loginForm.username : username,
        password: password === undefined ? this.loginForm.password : decrypt(password),
        rememberMe: rememberMe === undefined ? false : Boolean(rememberMe),
      }
    },
    handleLogin() {
      this.$refs.loginForm.validate((valid) => {
        if (valid) {
          this.loading = true
          if (this.loginForm.rememberMe) {
            Cookies.set("username", this.loginForm.username, { expires: 30 })
            Cookies.set("password", encrypt(this.loginForm.password), { expires: 30 })
            Cookies.set("rememberMe", this.loginForm.rememberMe, { expires: 30 })
          } else {
            Cookies.remove("username")
            Cookies.remove("password")
            Cookies.remove("rememberMe")
          }
          this.$store
            .dispatch("Login", this.loginForm)
            .then(() => {
              // 登录成功后刷新页面
              window.location.reload();
              this.$router.push({ path: this.redirect || "/" }).catch(() => {})
            })
            .catch(() => {
              this.loading = false
              if (this.captchaEnabled) {
                this.getCode()
              }
            })
        }
      })
    },
  },
}
</script>

<style rel="stylesheet/scss" lang="scss">
.login {
  .layer {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: #1557ae;
    opacity: 0.2;
  }
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100%;
  background-image: url("../assets/images/pmhub-bg2.png");
  background-size: cover;
  background-position: center center;
  .title {
    margin: 0px auto 30px auto;
    text-align: center;
    color: #707070;
  }

  .login-form {
    z-index: 99;
    border-radius: 6px;
    background: #ffffff;
    width: 400px;
    padding: 25px 25px 5px 25px;
    .el-input {
      height: 38px;
      input {
        height: 38px;
      }
    }
    .input-icon {
      height: 39px;
      width: 14px;
      margin-left: 2px;
    }
  }
  .login-tip {
    font-size: 13px;
    text-align: center;
    color: #bfbfbf;
  }
  .login-code {
    width: 33%;
    height: 38px;
    float: right;
    img {
      cursor: pointer;
      vertical-align: middle;
    }
  }
  .el-login-footer {
    height: 40px;
    line-height: 40px;
    position: fixed;
    bottom: 0;
    width: 100%;
    text-align: center;
    color: #fff;
    font-family: Arial;
    font-size: 12px;
    letter-spacing: 1px;
  }
  .login-code-img {
    height: 38px;
  }
}
</style>
